X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=clockvector.cc;h=e56c2ace662507be12875c18446932fe54593252;hb=17b667f2d53729212d23e62a3f9464b8180e01f6;hp=062ac4148e6573a4f00f59ccd6b947c5d37259e7;hpb=e60d8c23d30a0dfe66b8426f7f2ecf576e812028;p=model-checker.git

diff --git a/clockvector.cc b/clockvector.cc
index 062ac41..e56c2ac 100644
--- a/clockvector.cc
+++ b/clockvector.cc
@@ -1,4 +1,3 @@
-#include <algorithm>
 #include <cstring>
 #include <stdlib.h>
 
@@ -40,27 +39,19 @@ ClockVector::~ClockVector()
  */
 void ClockVector::merge(const ClockVector *cv)
 {
-	modelclock_t *clk = clock;
-	bool resize = false;
-
 	ASSERT(cv != NULL);
 
 	if (cv->num_threads > num_threads) {
-		resize = true;
-		clk = (modelclock_t *)snapshot_malloc(cv->num_threads * sizeof(modelclock_t));
+		clock = (modelclock_t *)snapshot_realloc(clock, cv->num_threads * sizeof(modelclock_t));
+		for (int i= num_threads; i < cv->num_threads; i++)
+			clock[i] = 0;
+		num_threads = cv->num_threads;
 	}
 
 	/* Element-wise maximum */
-	for (int i = 0; i < num_threads; i++)
-		clk[i] = std::max(clock[i], cv->clock[i]);
-
-	if (resize) {
-		for (int i = num_threads; i < cv->num_threads; i++)
-			clk[i] = cv->clock[i];
-		num_threads = cv->num_threads;
-		snapshot_free(clock);
-	}
-	clock = clk;
+	for (int i = 0; i < cv->num_threads; i++)
+		if (cv->clock[i] > clock[i])
+			clock[i] = cv->clock[i];
 }
 
 /**
@@ -84,17 +75,6 @@ bool ClockVector::synchronized_since(const ModelAction *act) const
 	return false;
 }
 
-bool ClockVector::has_synchronized_with(const ClockVector *cv) const
-{
-	ASSERT(cv);
-	if (cv->num_threads > num_threads)
-		return false;
-	for (int i = 0; i < cv->num_threads; i++)
-		if (cv->clock[i] > clock[i])
-			return false;
-	return true;
-}
-
 /** Gets the clock corresponding to a given thread id from the clock vector. */
 modelclock_t ClockVector::getClock(thread_id_t thread) {
 	int threadid = id_to_int(thread);